CHEVROLET 0823 Rectangle Port Cylinder Heads 6.0 6.2

( Manufacturer Part Number: 0823 ), ( Type: Cylinder Head ), ( Bc : Gm 0823 ), ( Listing Agent: Mb ), ( Manufacturer Warranty: Unspecified Length ), ( Material: Aluminum ), ( Stk : 68217/68218 ), ( Location: Dc )

Review CHEVROLET 6.0 6.2 Rectangle Port Cylinder Heads fits LS2 LS3

Meticulously Engineered Chevrolet LS2/LS3 Rectangular Port Cylinder Heads (Part No. 0823) for High-Performance Enthusiasts

Experience unparalleled power and precision with the Chevrolet 0823 6.0 6.2 LS2 LS3 Rectangular Port Cylinder Heads. These high-performance cylinder heads are meticulously crafted to deliver an exceptional driving experience, offering unmatched power and efficiency for your LS engine.

The 0823 cylinder heads are designed with a rectangular port configuration, enhancing the airflow efficiency and promoting a more powerful combustion process. This design, combined with the large intake runners, allows for increased air and fuel mixture, ultimately boosting horsepower and torque output.

Manufactured using advanced casting techniques and stringent quality control measures, these cylinder heads ensure durability and longevity. The high-quality alloy material used guarantees resistance to heat and wear, ensuring optimal performance under high-stress conditions.

Each cylinder head features fully CNC-machined combustion chambers and valve seats, ensuring a precise fit and a smooth, consistent combustion process. This level of precision is crucial in maximizing power output and minimizing exhaust gas leaks, resulting in enhanced performance and fuel efficiency.

The 0823 LS2/LS3 Rectangular Port Cylinder Heads are suitable for various engine sizes, including 6.0L and 6.2L, making them a versatile choice for both enthusiasts and professionals. Whether you're building a high-performance street car or a race-ready machine, these cylinder heads are the perfect upgrade to take your LS engine to the next level.

In summary, the Chevrolet 0823 6.0 6.2 LS2 LS3 Rectangular Port Cylinder Heads offer a unique blend of power, efficiency, and durability, making them an ideal choice for any serious LS engine enthusiast looking to push the boundaries of performance. Upgrade your engine today and experience the difference these high-performance cylinder heads can make.

1. Power: These engines are known for their high power output, with the LS2 offering 345 horsepower and the LS3 delivering up to 430 horsepower.

2. Durability: Chevrolet engines are generally reliable and well-built, with a reputation for longevity.

3. Performance: The rectangular port cylinder heads provide excellent airflow, which improves performance and fuel efficiency.

4. Availability: These engines are widely available on the aftermarket, making them accessible for many enthusiasts.

1. Cost: The cost of these engines can be high, especially for the LS3, due to their performance capabilities.

2. Complexity: The LS2 and LS3 engines are more complex than some other engine options, which can make maintenance and repair more challenging.

3. Fuel Consumption: Despite the fuel efficiency improvements from the rectangular port cylinder heads, these engines can still consume a significant amount of fuel, especially during high-performance driving.

4. Emissions: These engines do not meet modern emissions standards, which can be a problem for those living in areas with strict regulations.

If you're looking for a high-performance engine for a muscle car or hot rod, the Chevrolet 0823 engines with 6.0 and 6.2 LS2/LS3 Rectangular Port Cylinder Heads could be a good choice. However, be prepared for the high cost, potential complexity, high fuel consumption, and emissions issues. A less expensive, more fuel-efficient, and emissions-compliant engine might be a better choice if those factors are more important to you.

For those who prioritize power and performance, the Chevrolet 0823 engines with LS2/LS3 Rectangular Port Cylinder Heads could be a worthwhile investment. However, it's essential to carefully consider the potential costs, complexity, and emissions issues before making a decision. It may be helpful to consult with a knowledgeable mechanic or engine specialist to determine if this engine is the best fit for your specific needs and circumstances.

Details:

The cast number is 0823. The heads were used on LS2/LS3 applications. We removed this set from a late 6.0 LY6 engine. They come just as seen with rockers, valves, springs.

No broke bolts or rim damage. Diesel Core, This is a pair of good undamaged rectangle port factory OEM cylinder heads. Valve are also in good shape and not burned or sunk into the seats. The cast number on the outside corner is 0823.

part #: 0823 prices

• $42.23-$60.88

specifications cylinderheapar:

• for models: Ls2, Ls3
• for makes: Chevrolet
• mpn: 0823
• type: Cylinder Head
• bc : Gm 0823
• listing agent: Mb
• manufacturer warranty: Unspecified Length
• material: Aluminum
• stk : 68217/68218
• location: Dc

payments cylinderheapar:

• credit card: Discover
• wallet: Google-pay
• other

seller cylinderheapar:

• # reviews: 1912
• city: Brookshire, Texas
• rating: 99.6%

returns cylinderheapar:

• policy: No Returns

offer cylinderheapar:

• sold: 0
• availability: In Stock
• started: December 17, 2025
• quantity: 1
• options: Ship-to-home

shipping cylinderheapar:

• class: Standard
• cost: $50.00
• service: Standard
• transit: 2-6 Days
• type: Fixed

general cylinderheapar:

• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads
• condition: Used

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